US10067391B2ActiveUtilityA1
Planar display panel and display device
Assignee: SHANGHAI AVIC OPTO ELECTRONICS CO LTDPriority: Dec 30, 2014Filed: Sep 11, 2015Granted: Sep 4, 2018
Est. expiryDec 30, 2034(~8.4 yrs left)· nominal 20-yr term from priority
Inventors:Huijun Jin
G02F 1/134336G02F 1/133512G02F 1/134309G09F 9/35G02F 2001/134345G02F 1/134345
45
PatentIndex Score
0
Cited by
5
References
14
Claims
Abstract
A planar display panel having a displaying effect of a curved screen and a display device. The sub-pixel pitches are sequentially increased in a direction departing from a central axis of the active display region in the display panel, so that the curved displaying effect is achieved by the planar display panel.
Claims
exact text as granted — not AI-modifiedI claim:
1. A planar display panel, comprising:
an active display region comprising a plurality of sub-pixels arranged in an array;
wherein the plurality of sub-pixels comprise first sub-pixels and second sub-pixels arranged alternately with the first sub-pixels;
a distance between a center axis of the first sub-pixel in a first direction and a center axis of the second sub-pixel in the first direction is defined as a sub-pixel pitch; and
the sub-pixel pitches are sequentially increased in a direction departing from a central axis of the active display region,
wherein, a first side close to the second sub-pixel of the first sub-pixel, is spaced from a second side close to the first sub-pixel of the second sub-pixel, by a first predetermined distance, and the first side of the first sub-pixel and the second side of the second sub-pixel extend along a same direction,
wherein the plurality of the sub-pixels have a same opening area, and the first predetermined distances are sequentially increased in a direction departing from the central axis of the active display region,
wherein the plurality of the sub-pixels have a same length and a same width, and the first predetermined distance is larger than or equal to 15 μm, and
wherein a first light shielding layer is disposed between the first sub-pixel and the second sub-pixel, and a width of the first light shielding layer in a second direction perpendicular to the first direction is larger than or equal to 15 μm.
2. The planar display panel of claim 1 , wherein, the planar display panel has a rectangle shape or a square shape, and the sub-pixel pitches are sequentially increased at both sides of the central axis of the active display region.
3. The planar display panel of claim 1 , wherein, the sub-pixel pitch between the first sub-pixel and the second sub-pixel in the second direction is calculated as:
D
m
=
B
m
+
1
-
B
m
=
C
′
·
tan
[
(
n
+
0.5
)
×
A
0
R
′
]
-
C
′
·
tan
[
(
n
-
0.5
)
×
A
0
R
′
]
,
m
=
1
,
2
,
3
,
…
wherein A 0 represents the sub-pixel pitch between the two sub-pixels respectively closest to the central axis of the active display region; C′ represents a shortest linear distance from a position of an observer to the planar display panel; R′ represents a linear distance from the position of the observer to a row or column of sub-pixels in the active display region of the planar display panel, wherein, the row or column of the sub-pixels in the active display region of the planar display panel is furthest away from the central axis of the active display region; and m is a positive integer and represents the amounts of the rows or columns of the sub-pixels located at one side of the central axis of the active display region.
4. The planar display panel of claim 1 , wherein the first predetermined distance has a constant value, and opening areas of the sub-pixels are sequentially increased in a direction departing from the central axis of the active display region.
5. The planar display panel of claim 4 , wherein the sub-pixel has a first width in a second direction perpendicular to the first direction, and the first widths are sequentially increased in a direction departing from the central axis of the active display region.
6. The planar display panel of claim 5 , wherein the first width of the sub-pixel is larger than or equal to 15 μm.
7. The planar display panel of claim 6 , wherein a second light shielding layer is disposed between the first sub-pixel and the second sub-pixel, and a width of the second light shielding layer in the second direction has a constant value.
8. The planar display panel of claim 7 , wherein the first width of the sub-pixel is calculated as:
M
m
=
D
1
m
-
W
=
C
′
·
{
tan
[
(
n
+
0.5
)
×
A
0
R
′
]
-
tan
[
(
n
-
0.5
)
×
A
0
R
′
]
}
-
W
,
m
=
1
,
2
,
3
,
…
wherein A 0 represents the sub-pixel pitch between the two sub-pixels respectively closest to the central axis of the active display region; C′ represents a shortest linear distance from a position of an observer to the planar display panel; R′ represents a linear distance from the position of the observer to a row or column of sub-pixels in the active display region of the planar display panel, wherein, the row or column of the sub-pixels in the active display region of the planar display panel is furthest away from the central axis of the active display region; W represents a first predetermined distance between the first sub-pixel and the second sub-pixel in the second direction and m is a positive integer and represents the amounts of the rows or columns of the sub-pixels located at one side of the central axis of the active display region.
9. A display device, comprising a planar display panel, the planar display panel comprises:
an active display region comprising a plurality of sub-pixels arranged in an array;
wherein the plurality of sub-pixels comprise first sub-pixels and second sub-pixels arranged alternately with the first sub-pixels;
a distance between a center axis of the first sub-pixel in a first direction and a center axis of the second sub-pixel in the first direction is defined as a sub-pixel pitch; and
the sub-pixel pitches are sequentially increased in a direction departing from a central axis of the active display region,
wherein, a first side close to the second sub-pixel of the first sub-pixel, is spaced from a second side close to the first sub-pixel of the second sub-pixel, by a first predetermined distance, and the first side of the first sub-pixel and the second side of the second sub-pixel extend along a same direction,
wherein the plurality of the sub-pixels have a same opening area, and the first predetermined distances are sequentially increased in a direction departing from the central axis of the active display region,
wherein the plurality of the sub-pixels have a same length and a same width, and the first predetermined distance is larger than or equal to 15 μm, and
wherein a first light shielding layer is disposed between the first sub-pixel and the second sub-pixel, and a width of the first light shielding layer in a second direction perpendicular to the first direction is larger than or equal to 15 μm.
10. The display device of claim 9 , wherein, the planar display panel has a rectangle shape or a square shape, and the sub-pixel pitches are sequentially increased at both sides of the central axis of the active display region.
11. The display device of claim 9 , wherein, the sub-pixel pitch between the first sub-pixel and the second sub-pixel in a second direction perpendicular to the first direction is calculated as:
D
m
=
B
m
+
1
-
B
m
=
C
′
·
tan
[
(
n
+
0.5
)
×
A
0
R
′
]
-
C
′
·
tan
[
(
n
-
0.5
)
×
A
0
R
′
]
,
m
=
1
,
2
,
3
,
…
wherein A 0 represents the sub-pixel pitch between the two sub-pixels respectively closest to the central axis of the active display region; C′ represents a shortest linear distance from a position of an observer to the planar display panel; R′ represents a linear distance from the position of the observer to a row or column of sub-pixels in the active display region of the planar display panel, wherein, the row or column of the sub-pixels in the active display region of the planar display panel is furthest away from the central axis of the active display region; and m is a positive integer and represents the amounts of the rows or columns of the sub-pixels located at one side of the central axis of the active display region.
12. The display device of claim 9 , wherein the first predetermined distance has a constant value, and opening areas of the sub-pixels are sequentially increased in a direction departing from the central axis of the active display region.
13. The display device of claim 12 , wherein the sub-pixel has a first width in a-second direction perpendicular to the first direction, and the first widths are sequentially increased in a direction departing from the central axis of the active display region.
14. The display device of claim 13 , wherein the first width of the sub-pixel is calculated as:
M
m
=
D
1
m
-
W
=
C
′
·
{
tan
[
(
n
+
0.5
)
×
A
0
R
′
]
-
tan
[
(
n
-
0.5
)
×
A
0
R
′
]
}
-
W
,
m
=
1
,
2
,
3
,
…
wherein A 0 represents the sub-pixel pitch between the two sub-pixels respectively closest to the central axis of the active display region; C′ represents a shortest linear distance from a position of an observer to the planar display panel; R′ represents a linear distance from the position of the observer to a row or column of sub-pixels in the active display region of the planar display panel, wherein, the row or column of the sub-pixels in the active display region of the planar display panel is furthest away from the central axis of the active display region; W represents a first predetermined distance between the first sub-pixel and the second sub-pixel in the second direction and m is a positive integer and represents the amounts of the rows or columns of the sub-pixels located at one side of the central axis of the active display region.Join the waitlist — get patent alerts
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